A198 SLEEP, Volume 43, Abstract Supplement, 2020 B. Clinical Sleep Science and Practice I. Insomnia Conclusion: Chinese patients with insomnia can be recruited successfully and treated effectively using CBTI via telehealth. Outcomes and effect sizes are similar to those seen with CBTI in other countries. Future comparison of CBTI with and without concurrent TCM could provide clinically relevant information. Support: None 0517 INTEGRATED COGNITIVE BEHAVIORAL THERAPY (CBT) AND MINDFULNESS GROUP TREATMENT PROTOCOL FOR INSOMNIA AND CHRONIC PAIN Barwick, F. 1 Poupore-King, H. 2 You, D. 2 1 Department of Psychiatry & Behavioral Sciences - Division of Sleep Medicine, Stanford University School of Medicine, Redwood City, CA, 2 Department of Anesthesiology, Stanford University School of Medicine, Redwood City, CA. Introduction: Chronic pain and insomnia are highly comorbid, and CBT is a recommended treatment for both. CBT protocols that treat these conditions together, however, show improve- ments in sleep but not pain. As mindfulness, an acceptance- based approach, has been used successfully to treat chronic pain, integrating mindfulness into a combined CBT treatment protocol may help improve outcomes for chronic pain as well as insomnia. Methods: An integrated CBT/Mindfulness weekly 6-session group protocol for chronic pain and insomnia was developed and piloted. Treatment components included education about pain neuroscience as well as sleep and circadian biology, relax- ation, time-based pacing, tracking 24-hour time in bed, sleep compression, stimulus control, cognitive reframing, and mind- fulness. Pre-post measures evaluating insomnia symptoms, sleep hygiene, pain acceptance, pain catastrophizing, and unhelpful beliefs about sleep and pain were analyzed using frequency ana- lyses and paired sample t-tests. Results: Two groups were completed for a total of 16 participants, 94% of whom attended at least 5 sessions. Average age was 56 years, 75% of the sample was female, 88% were White, 6% Asian, and 6% Latino. Post-treatment outcomes showed signifcant improve- ment in insomnia symptoms (ISI M diff =6.6, SD diff =5.3, p=.01, ES=1.2), sleep hygiene (SHI M diff =3.8, SD diff =4.6, p=.02, ES=.83), pain acceptance (CPAQ M diff =5.2, SD diff =7.8, p=.03, ES=.67), pain catastrophizing (PCS M diff =5.1, SD diff =7.5, p=.03, ES=.68), and unhelpful beliefs about sleep (DBAS M diff =31.4, SD diff =21.2, p=.009, ES=1.5) and pain (PBAS M diff =11.6, SD diff =10.7, p=.02, ES=1.1). Conclusion: An integrated CBT/Mindfulness group protocol for chronic pain and insomnia showed significant improve- ments in post-treatment sleep and pain measures. As previous combined CBT-only protocols showed pre-post improvement in sleep but not pain, the current study demonstrates that including mindfulness might improve outcomes for chronic pain. Future studies should compare CBT protocols for chronic pain and insomnia with and without mindfulness to determine the clinical benefits of including an acceptance- based component. Support: Poster presented as part of collaborative conversa- tion with Skye Margolies, PhD, Department of Anesthesiology, University of North Carolina School of Medicine. 0518 SLEEP FACILITATION BY ARTIFICIAL CARBONATED BATHING IN HEALTHY ELDERLY; EEG, CORE, PROXIMAL, AND DISTAL TEMPERATURE EVALUATIONS Uemura, S. I. 1 Kanbayashi, T. 2 Imanishi, A. 3 Terui, Y. 1 Satake, M. 1 Shioya, T. 4 Nishino, S. 5 1 Akita University Graduate School of Health Sciences, Akita, JAPAN, 2 International Institute for integrative sleep medicine, University of Tsukuba, Tsukuba, JAPAN, 3 Akita University Graduate School of Medicine, Akita, JAPAN, 4 Geriatric Health Services Facility Nikonikoen, Akita, JAPAN, 5 Stanford University, Psychiatry and Behavioral Sciences - Sleep & Circadian Neurobiology Laboratory, Palo Alto, CA. Introduction: Bathing, especially with hot spring with various mineral compositions, is known to facilitate / improve sleep by warming the body. Artifcial carbonated bathing (ACB) is known to keep the body warm too. Previous our study examined that ACB before sleep more specifcally affected body temperature and sleep on healthy young subjects. In this study, we evaluated the effects of usual (plain hot water; PH) and artifcial carbonated bathing, on sleep using clinical thermometers and EEG in healthy elderly subjects. Methods: Nine healthy elderly women (average age 71.3 years old) were divided into 2 groups ACB (858 ppm, Awacomachi, Danrei Co.) and PH with a week interval. Subjects soaked in the bath (38 C degree) deep enough their chests touched the water for 10 min. From the time they fnished bathing to the next morning, we measured their distal skin temperature (top side of the foot), proximal skin temperature (lower part of the clavicle) and EEG using a single channel portable device (Brain wave sensor, Proassist Co.). Subjects were told to sleep from 23:00-6:00. As the same time, subjects were examined with visual analog scale (VAS) and clinical ficker fusion test (CFF). Results: There was no signifcant difference in body temperature (proximal, distal, distal-proximal temperature gradient: DPG) be- fore and during sleep between ACB and PH. The condition of the ACB tended to have less light sleep compared to PH (150min vs 201min, p=0.08), but there was no signifcant difference in the SWS (44.1min vs 39.1min, ns), EEG delta power analysis, VAS and CFF. In the previous study, bathing was performed for 15 min at a water temperature of 40 C degree, but this condition was considered to be a high risk for the elderly. The reason why there was no signif- cant difference in body temperature. The effects of ACB were not fully demonstrated due to changes in hot water temperature and bathing time. Conclusion: The effect of ACB on the body temperature of healthy elderly people could not be confrmed. However, a tendency to re- duce light sleep was observed. Support: This work was supported by JSPS KAKENHI Grant Number JP19K11294 0519 MINDFULNESS BASED THERAPY FOR INSOMNIA IMPROVES OBJECTIVE MARKERS OF SLEEP IN THE ELDERLY: PRELIMINARY DATA FROM THE MINDFULNESS SLEEP THERAPY (MIST) STUDY Wong, K. F. 1 Perini, F. 1 Henderson, S. L. 2 Teng, J. 1 Hassirim, Z. 1 Lin, J. 1 Leow, Z. 1 Fan, Q. 2 Ong, J. 1 Lo, J. 3 Ong, J. C. 4 Doshi, K. 2 Lim, J. 1 Downloaded from https://academic.oup.com/sleep/article/43/Supplement_1/A198/5846931 by guest on 16 March 2023